// Generated by CoffeeScript 2.5.1
(function() {
  var DEV, MONGODB_PORT, MONGODB_SERVER, app, log, mongo, server, url;

  app = require('express')();

  server = require('http').Server(app);

  mongo = require('mongodb');

  log = require('./log.js');

  DEV = process.env.NODE_ENV === 'development';

  MONGODB_SERVER = DEV ? 'localhost' : 'db_mongo';

  MONGODB_PORT = parseInt(process.env.MONGODB_PORT || 27017, 10);

  log.debug("Starting NewsBlur Favicon server...");

  if (!DEV && !process.env.NODE_ENV) {
    log.debug("Specify NODE_ENV=<development,production>");
    return;
  } else if (DEV) {
    log.debug("Running as development server");
  } else {
    log.debug("Running as production server");
  }

  if (DEV) {
    url = `mongodb://${MONGODB_SERVER}:${MONGODB_PORT}/newsblur`;
  } else {
    url = `mongodb://${MONGODB_SERVER}:${MONGODB_PORT}/newsblur?replicaSet=nbset&readPreference=secondaryPreferred`;
  }

  mongo.MongoClient.connect(url, (err, db) => {
    log.debug(`Connected to ${db != null ? db.serverConfig.s.host : void 0}:${db != null ? db.serverConfig.s.port : void 0} / ${err}`);
    return this.collection = db != null ? db.collection("feed_icons") : void 0;
  });

  app.get(/\/rss_feeds\/icon\/(\d+)\/?/, (req, res) => {
    var etag, feed_id;
    feed_id = parseInt(req.params[0], 10);
    etag = req.header('If-None-Match');
    log.debug(`Feed: ${feed_id} ` + (etag ? ` / ${etag}` : ""));
    return this.collection.findOne({
      _id: feed_id
    }, function(err, docs) {
      var body;
      if (!err && etag && docs && (docs != null ? docs.color : void 0) === etag) {
        log.debug(`Cached: ${feed_id}, etag: ${etag}/${docs != null ? docs.color : void 0} ` + (err ? `(err: ${err})` : ""));
        return res.sendStatus(304);
      } else if (!err && docs && docs.data) {
        log.debug(`Req: ${feed_id}, etag: ${etag}/${docs != null ? docs.color : void 0} ` + (err ? `(err: ${err})` : ""));
        res.header('etag', docs.color);
        body = new Buffer(docs.data, 'base64');
        res.set("Content-Type", "image/png");
        return res.status(200).send(body);
      } else {
        log.debug(`Redirect: ${feed_id}, etag: ${etag}/${docs != null ? docs.color : void 0} ` + (err ? `(err: ${err})` : ""));
        if (DEV) {
          return res.redirect('/media/img/icons/circular/world.png');
        } else {
          return res.redirect('https://www.newsblur.com/media/img/icons/circular/world.png');
        }
      }
    });
  });

  app.listen(3030);

}).call(this);